Troubleshooting::
Herringbone Patterns::
The most common cause of wavy, herringbone lines on
multiple channels is an over-driven amplifier. There are
a few causes of an over-driven amplifier:
•
Too much gain in the system. If this is the case, turning
the gain dial counter-clockwise will reduce the gain and
improve the picture.
•
A strong local FM signal may be present. An FM trap,
installed before the amplifier, will solve the problem.
•
A strong local TV signal may be present. You may
need a tuned filter to reduce that station’s signal.
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Specifications::
AP-20
AP-35
Maximum Gain
20dB
35dB
Gain Adjustment
0dB to
15dB to
Range
20dB
35dB
Forward Bandwidth
54MHz - 1000MHz
Reverse Bandwidth
5MHz - 42MHz
Noise Figure
2.5dB typical
Flatness
±1.5dB typical
Max Output @
42dB
49dB
36 Channels
Operating
Tilt Compensation
12 to 14dB @ 54MHz
Range
Dimensions
8.75”x6.5”x3.5”
10.5”x6.5”x3.5”
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T0205-T2 amp-OM.qxp 9/16/03 09:38 AM Page C6
